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Static IMRT vs VMAT - Conceptual issues
Is there any difference between static IMRT and
VMAT?
• Use the same hardware
• Can be virtually
‘
mapped
’
onto each other:
– S-IMRT with infinite number of beams
VMAT
–
VMAT with
infinitely small gantry speeds (quasi static)
S-IMRT
Bortfeld and Webb, PMB 2009
Courstesy of Jochem Wolthaus